ARP 8740 1/2" Head Stud Kit - 2003+ LS 427 LS This package is still dependable

This package is still dependable at the 1000HP mark if you want to put a little extra squeeze on it with your choice of power adder

Need a stronger fastener

Our street/strip series 5

• Unlined hood with color-matched drawcord

ARP 8740 1/2" Head Stud Kit - 2003+ LS 427 LS This package is still dependableBoostline Performance in combination with ARP Fasteners has put together an affordable 1 2" head stud set for 03+ Gen III and Gen IV LS engines! These 1 2" Studs are made from ARP 8740 material, adding additional clamping force and head gasket stability for boosted applications on stock blocks. Any Boostline Engine package can be drilled and tapped for this 1 2"stud option! Or you can do it yourself by drilling tapping Tick Performance drilling